Obtain access token and refresh token for Box API OAuth 2.0

box_api.py

# See https://forum.rclone.org/t/box-getting-403-errors-when-using-chunker-working-fine-without-it/40388/22?u=vashp2029

import requests
import urllib.parse
import json

# Define your Box app's client ID, client secret, and redirect URI
CLIENT_ID = 'YOUR_CLIENT_ID'
CLIENT_SECRET = 'YOUR_CLIENT_SECRET'

REDIRECT_URI = 'http://localhost:8080'
AUTH_URL = 'https://account.box.com/api/oauth2/authorize'
TOKEN_URL = 'https://api.box.com/oauth2/token'

params = {
    'response_type': 'code',
    'client_id': CLIENT_ID,
    'state': 'random_string',  # Replace this with a real random string
    'redirect_uri': REDIRECT_URI,
}
print(f'Go to the following URL: {AUTH_URL}?{urllib.parse.urlencode(params)}')

# Step 2: User authorizes your app...

# Step 3: Handle the redirect
code = input('Enter the code parameter from the redirect URL: ')

# Step 4: Exchange the code for tokens
data = {
    'grant_type': 'authorization_code',
    'code': code,
    'client_id': CLIENT_ID,
    'client_secret': CLIENT_SECRET,
}
response = requests.post(TOKEN_URL, data=data)
tokens = response.json()

# Create a new dictionary with only the access_token and refresh_token
tokens_filtered = {
    'access_token': tokens['access_token'],
    'refresh_token': tokens['refresh_token'],
}

# Print the filtered tokens in JSON format
print(json.dumps(tokens_filtered))